tree d805bd42d6d41be58ae01594e043b3bc9ce59e38
parent a3f0c6b640f369a59edcdf54cf77e9efbde1886a
author Tao Zhou <taoalpha@google.com> 1585553734 +0200
committer Tao Zhou <taoalpha@google.com> 1585553734 +0200

Update sorting for threads

Threads are sorted by:
1. unresolved & has drafts should show up first
2. then sort by file path
3. then file level comments first
4. then sort by line
5. then sort by updated time
6. then sort by id

This should avoid most of the re-arrangements
from previous sort by date solution.
The re-arrangement will still happen if you change a comment
from unresolved to resolved or vice versa

Change-Id: I2e09211d5ab3c861c2346668d6c2b64118301972